package com.sven.idrivingfutureserver.interceptor;

import org.springframework.stereotype.Component;

import javax.servlet.*;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 *
 * @Description：处理跨域问题
 */
@Component
public class CrossFilter implements Filter {
    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
    }

    @Override
    public void doFilter(ServletRequest req, ServletResponse res, FilterChain filterChain) throws IOException, ServletException {
        req.getParameterMap();
        setHeader((HttpServletResponse) res);
        filterChain.doFilter(req, res);
    }

    private void setHeader(HttpServletResponse response) {
        response.setHeader("Access-Control-Allow-Origin", "*");
        response.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE, PUT");
        response.setHeader("Access-Control-Max-Age", "3600");
        response.setHeader("Access-Control-Allow-Headers", "x-requested-with,sa-xr-token,height,width,os,os-version,device-name,accept,Content-Type,authorization,Api-Version");
    }
    
    @Override
    public void destroy() {
    }
}
